Shelf unit



FIG. 1 is a perspective view of a shelf unit showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is an end elevational view thereof;

FIG. 6 is a perspective view of a second embodiment of the shelf unit shown in FIG. 1;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a side elevational view thereof;

FIG. 10 is an end elevational view thereof;

FIG. 11 is a perspective view of a third embodiment of the shelf unit shown in FIG. 1;

FIG. 12 is a top plan view thereof;

FIG. 13 is a bottom plan view thereof;

FIG. 14 is a side elevational view thereof;

FIG. 15 is an end elevational view thereof;

FIG. 16 is a perspective view of a fourth embodiment of the shelf unit shown in FIG. 1;

FIG. 17 is a top plan view thereof;

FIG. 18 is a bottom plan view thereof;

FIG. 19 is a side elevational view thereof;

FIG. 20 is an end elevational view thereof;

FIG. 21 is a perspective view of a fifth embodiment of the shelf unit shown in FIG. 1;

FIG. 22 is a top plan view thereof;

FIG. 23 is a bottom plan view thereof;

FIG. 24 is a side elevational view thereof; and

FIG. 25 is an end elevational view thereof. 

The ornamental design for a shelf unit, as shown and described. 